Zonefile-parser

What's Changed
* Support lower case rtype lookup by drscream in https://github.com/aredwood/zonefile-parser/pull/22

New Contributors
* drscream made their first contribution in https://github.com/aredwood/zonefile-parser/pull/22

**Full Changelog**: https://github.com/aredwood/zonefile-parser/compare/0.1.10...0.1.11

- added CAA record support 17

- resolve a record parsing issue 16

- added support for SRV records (15)

- resolved an issue where the parser wasn't able to parse zonefiles that were missing an "rclass".

Includes a change from halmartin that improves parsing of "rtypes" of different cases.